Saltwater and freshwater fish tanks are enjoyable to have around the home. But is one better for beginner tank owners than the other?

Freshwater ecosystems are closely linked to their terrestrial surroundings through complex physical, chemical, and ecological interactions. They receive ...

Cardinal tetras are famous for their glowing blue and bright red stripes that run across their bodies. People often mix them up with neon tetras, but cardinal tetras have a bright red line that goes ...

Fishing pressure in the Mediterranean and Black Sea has fallen sharply over the past decade, but just over half of assessed fish populations remain overfished and climate threats are mounting, the U.N ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

From time to time, curious tales of “fish rain” grab media attention: fish seemingly fall from the sky, far from any bodies ...

One of the most comprehensive surveys to date of shark and other large predator fish in the Eastern Tropical Pacific (ETP) ...

New research has revealed the critical role of river-floodplain connectivity in sustaining fish species diversity on the ...

These mysterious creatures undertake extraordinary journeys—a metamorphosis and migration so dramatic it rivals any in nature ...

The ocean is home to some of the most stunning colours in nature, but few are as mesmerising as the vibrant electric blue ...

New tank syndrome involves a dangerous buildup of toxins. Discover what causes it, how it hurts fish, and how to prevent it ...